Really needs a lot of work. I don't think the 'right mouse to fall faster' control scheme works at all. I also think you should be able to use the arrow keys as well as WASD. It wasn't clear what was happening at the end of the tutorial, nor that the big purple circles took you to the next level instead of just being another obstacle. In the first level I gave up because the ball was obscured by the timer so I couldn't see what was happening.